He Used the Villain as a Stand-In and Then Escaped to Death.

The lively and cheerful young lady × the world-weary and crazy villain Ning Qi traveled into a novel by Long Aotian and became an unruly and willful princess of the Yan Dynasty who forcibly entered into a marriage contract with the male protagonist. The system told her that as long as she licked the male protagonist without thinking according to the original plot, accumulated infatuation points, blocked the knife for him and went offline, she could return to her own world. She saw the male protagonist's broad chest and narrow waist, and readily agreed. Unfortunately, no matter how she showed her kindness, the male protagonist was very cold. By chance, she met a blind servant in the Nanfeng Pavilion. Not only was his body shape very similar to the male protagonist, but his face was completely in line with her aesthetics. The system warned her that this was the biggest villain in the book, the demon who almost destroyed the three realms! Ning Qi didn't take it seriously. It took ten years for a villain to become a demon, but she died after a year. What should she be afraid of? She bought him home and called him Xiao Sui, taking advantage of him. Although Xiao Sui looked gloomy, his ears were always red. Ning Qi fell in love even more. But the mission cannot stop. The male protagonist soon discovers Xiao Sui's existence, and his infatuation value drops rapidly. In desperation, she tells the male protagonist that Xiao Sui is his substitute. A year later, when the demons invaded, she blocked the fatal sword blow for the male protagonist and completed the mission. The male protagonist, who had always been unpretentious, was greatly disappointed. He hugged her with a pale face, but was pushed away by Xiao Sui who stumbled over. When the cold liquid hit her face, Ning Qi thought guiltily that she was indeed sorry for Xiao Sui. … When she opened her eyes again, she was still in this world, becoming the 108th sacrifice to the devil. It is said that the demon god ascended the throne five years ago and ruled the demon world. He arrested cultivators and made them into corpse demons to avenge his dead wife. Before she could question the system about what was going on, she had already been thrown into the dark dungeon and saw the male protagonist who had been tortured into a state of disgrace. The system's voice suddenly came out: Host! Something went wrong, your task now is to rescue the hero in time! Ning Qi:? She saw her former slave slowly walking into the dungeon, dressed in fine clothes and a jade crown on her head. His eyes fell on her hands trying to open the lock, his eyes dangerous. Ning Qi paused. The demon crushed the key in her hand, pulled her into the gorgeous house, locked the door, approached her, and asked in a trembling voice: "If he dies, am I no longer a substitute?" *Pseudo double *The male protagonist loves the female protagonist very much and will not do anything to harm the female protagonist Intention: Stick to your heart and move forward courageously